"Whoever it is will hopefully be someone collaborative and excited to be part of the process," star Raul Esparza recently told THR when asked about the upcoming showrunner change.

The move is not surprising, given Chernuchin's long history working with prolific producer Dick Wolf. He wrote for Law & Order beginning in the show's first season and worked his way up from co-producer to executive producer and showrunner. Chernuchin left at the end of season six, but later returned in season 13.

(Eid and current SVU executive producer Julie Martin also worked on the flagship series.)

Chernuchin's other credits include Law & Order: Criminal Intent, 24, Black Sails, Rogue and, most recently, Chicago Justice. The fourth series in the Chicago franchise was recently canceled by NBC after one 13-episode season. Chernuchin is repped by Paradigm, Brillstein Entertainment Partners and Jackoway Tyerman.

He tweeted about his addition to SVU late Thursday.

Thank you all for the warm welcome. I am honored and humbled to join the incredible #SVU family. @nbcsvu

The Law & Order vet joins SVU as the drama inches closer to surpassing Gunsmoke as longest-running primetime scripted drama of all time. Law & Order came close, hitting 20 seasons before it was abruptly canceled one season short of breaking the record.

SVU already stands as the longest-running primetime drama currently on the air and celebrated its 400th episode in February.

Original series star Mariska Hargitay leads a cast that also includes Ice-T, Kelli Giddish, Peter Scanavino and Esparza.

The Universal Television drama is exec produced by Wolf, Hargitay, Martin, Peter Jankowski and Arthur W. Forney.